Embossing apparatus



Feb. 4, 1936. J. J. BRAUND EMBOSSING APPARATUS Filed April 22, 1955 6Sheets-Sheet 1 z W I i? 8 7 d 92 I 9 f p 5/! 4 M M 4 4 M w 4 0 Z 7 7 w IQ M d W I. I w W M r n a in T O I. n C U n I Ailornep Feb. 4, 1936. J.J. BRAUND 2,029,651

EMBOS S ING APPARATUS Filed April 22, 1935 e Sheets-Sheet 2 [nvcnlor AHome];

Feb. 4, 1936.

.1. J. BRAUND 2,029,651

EMBOSSING APPARATUS Filed April 22, 1935 6 Sheets-Sheet 4 i 6%? A57 A56A6155 IJZ I" m /75 4; my /46 /.?7 g Z51 I Jbizn effiraan a? M Feb. 4,1936.. J. J BRAUND 2,029,651

EMBOSSING APPARATUS Filed April 22, 1935 Q 6 Sheets-Sheet 5 Inventore7a/222 JFraanL-Z A No may Feb. 4, 1936. J. J. BRAUND 2,029,651

EMBOSSING APPARATUS I Filed April 22, 1935 6 Sheets-Sheet 6 InventorPatented Feb. 4, 1936 UNITED STATES PATENT OFFICE EMBOSSING APPARATUSJohn J. Braund, Washington, D. C.

Application April 22, 1935, Serial No. 17,704

22 Claims.

This invention relates to embossing apparatuses and is an improvementupon my United States Patent 1,860,729, May 31, 1932, and applies themethod of embossing in my Patent No. 1,866,-

448, July 5, 1932.

The primary purpose of the present invention is to devise an embossingapparatus which may be manipulated with precision by any operator byturning control wheels placed at convenient locations on the table ofthe machine and which apparatus saves time and labor in completing theembossing operation.

Another feature of the invention is the provision of a movable backingplatform to render the definition of the contour more distinct whichplatform insures the different elevations terminating in the same orapproximately the same plane.

Another advantage of the present invention is the provision of amechanism on the handle of the hammer head to overcome damage to thework sheet caused by excessive vibration-in the hammer which mechanismretains the hammer in retracted position requiring the turning of thehandle on the hammer to project the hammer to working position and uponthe release of the handle renders the hammer stroke inefiective withoutraising the entire hammer head on its axis.

Another object of the invention is the provision of gauges on theapparatus with the use of which any total depth of the elevation tobeembossed may be divided into equal parts to represent any number ofdifferent elevations desired.

Another object of the invention is to coordinate an indicator of thebacking platform with the movement of the hammer head whereby theplatform may be moved in proportion to the hammer head on each step ofthe embossing operation.

A further object of the invention resides in the a construction of aframe for controlling the tension on the work sheet to insure moreuniformity in the maps.

With the foregoing and. other objects in view the invention cons'sts ofa novel construction,

. combination and arrangement of parts as will be hereinafter morespecifically described and illustrated in the accompanying drawings,wherein is dsclosed an embodiment of the invention, but it is to beunderstood that changes, variations, may be resorted to withoutdeparting from the spirit of the claims hereunto appended.

In the drawings wherein is disclosed the preferred embodiment of theinvention and wherein like reference characters denote correspondingparts throughout the several views;

Figure 1 is a front side elevation of the embossing apparatus of thepresent invention.

Figure 2 is a top plan view thereof.

Figure 3 is a horizontal section through the apparatus taken on a planesubstantially flush with 5 the track rails, with the backing platformand tool pans removed, and showing certain depending parts of theplatform in section.

Figure 4 is a detailed vertical section taken substantially on line l4of Figure 3 and looking in 10 the direction of the arrows.

Figure 5 is a sectional elevation of the hammer head of the apparatustaken substantially on line 55 of Figure 2. a

Figures 6, 7, and 8 are sections taken substantially on the lines 6-6,1'|,.and 8-8 of Figure 5 and looking in the direction of the arrows.

Figure 9 is a vertical section taken substantially on the plane of theline 9-9 of Figure '7 and looking'in the direction of the arrows.

Figure 10 is an exploded perspective view of the inner end of the handleshaft.

Figure 11 is a detailed vertical section substantially on the plane ofline ll--ll of Figure 3.

Figure 12 is a perspective view of the hacking 25 platform indicatingmechanism removed from the apparatus.

Figure 13 is a horizontal section taken substantially on the horizontalplane of line I3l3 of Figure 12.

Figure 14 is a fragmentary perspective view of a rear corner of thebacking platform removed from the apparatus.

Figure 15 is a front elevation of the backing pltaform removed from theapparatus.

Figure 16 is a fragmentary elevation of the upper end of the standardpartly in section and with parts removed.

Figure 1'7 is a section through the setting handle taken substantiallyon line l'l-l'l of Figure 16.

Figure 18 is a horizontal section taken substantially on line l8--l8 ofFigure 16.

Figure 19 is a fragmentary front elevation of the slide plate.

Figure 20 is a perspective view of the cam knob. 45

Figure 21 is a vertical section through a portion of the outside of thetop frame of the table.

Figure 22 is a vertical sectional view through a work sheet embossed bythe apparatus and reso moved from the clamping frame.

Figure 23 is a fragmentary vertical section through the clamping frameand work sheet prior to clamping the work sheet thereto.

Figures 24 and 25 are vertical sectional views 55 through hammer shanksremoved from the chuck on the hammer rod.

Referring to the drawings in detail, the apparatus of the presentinvention includes a table A preferably constructed of metal elementsof. suflicient strength to support the various parts of the apparatus.The top of the table is in the nature of an open rectangular frame witha relatively wide downwardly directed channel piece as a rear side rail38. The opposite ends of side rail are secured to the rear ends of endrails 3i, 32 and the forward ends of the end rails are secured to thefront side rail 33 which latter is of channel shape. The legs 34 aresecured at the upper ends to the corners of the frame and support thistop frame of. the table in a comfortable elevated position for theoperator and the legs are braced as at 35.

A pair of spaced transverse supporting bars 31, 38 are secured edgewiseat their opposite ends to intermediate portions of side rails 38, 33.There is also a pair of parallel track rails 39, 48 secured by bracketsM to the respective side rails 30, 33 and these track rails extendlongitudinally and are coextensive in length with the top frame of thetable. A rectangular backing platform guide frame is removably supportedand slidable 1ongitudinally only on these guide rails and for thispurpose the confronting faces of the track rails are formed withshoulders 43 between the upper and lower edges on which rests the loweredges of. the side rails 44 with intervening portions thereof slidingagainst the tracks above the shoulders all of which is shown in Figures4 and 21. The guide frame 42 may be lifted from the track rails but fitssnugly between the rails when it is supported on the shoulders 43.

A rectangular horizontally disposed backing platform B moves verticallyin the guide frame 42. This platform provides a buttress for the ductilemetal work sheet to be embossed in relief by the apparatus as willappear later. Platform B is made with a rigid metal plate 45 on which issecured a compressible pad 45 preferably made of rubber of the desiredelasticity. Depending lugs 41 are secured to plate 45 and these lugsride on lateral pins 48 secured to the rocker arms 49 which arms arerigidly connected to a pair of shafts 50, 5|. The shafts 58, 5I arejournaled in the supporting bars 31, 38. End portions of the shafts atone end extend through support bar 38 and carry gears 52 on theprojecting ends which mesh with worm gears 53 on the manually operatedshaft 54. Operating shaft 54 is journaled in bearings 55 secured tosupport bar 38 and a bearing 58 secured to the front side rail 33 of thetop frame of the table. The front end of shaft 54 extends forwardly fromthe track rail 40 and has an operating wheel 51 on the free end whichwhen turned in either direction raises or lowers the backing platform B.Shaft 54 extends transversely and shafts 50, 5| extend longitudinally ofthe top frame of the table. Lugs 41 are located adjacent the fourcorners of the platform B so as to raise and lower the platform in aneven horizontal plane. The inner end of a sectional rigid link arm C isrigidly secured to the lower ends of a pair of depending rods 58 byscrews 58 which rods are secured to the metal plate 45 of the platform.Link arm C moves vertically with the platform and is connected with theindicator plunger as will hereafter appear. So as to insure that backingplatform B moves in a vertical plane, in addition to the guide frame 42there is a bifurcated guide arm 228 secured to the metal plate 45 independing relation. The slot 22I in the arm straddles the center ofshaft SI and is guided thereby as will be seen by referring to Figure 3of the drawings.

Bolted to the rear corner of the top frame of the table and to the ledgeor rear side rail 38 is a supporting bracket BI formed in the centerwith an upright bearing sleeve 62 and a socket 83 carrying a set screw84. The lower end of a cylindrical vertical standard is rigidly securedin the socket 63 by the set screw 54. A vertically movable carriageincluding a sleeve 68 which carries the hammer head to presently appear,slides on standard 65 and the sleeve is formed with lateral verticallyspaced apertured bearing lugs 61 and to these lugs are journaled on thepin 68 for swinging movement in a horizontal plane, a pair of ears 68 onthe inner end of an arm III.

The movement of carriage sleeve 86 is controlled with precision by avertical rod II an intermediate portion of which slides through rearrail 38, see Figure 11, bearing 62 and a bearing 12 on the top wall of asquare gear casing I3 which latter is secured under rail 30. In thebottom wall of the casing is an opening I4 registering with bearing 12through which slidably projects the threaded lower end I5 on theoperating rod TI. The end of rod II which extends above the rail 30 isrigidly secured to the lowermost lug 61 on carriage sleeve 88 wherebyvertical sliding movement of the rod II moves arm I8. To operate rod IIthere is a manually turned shaft 18 extending transversely across thetop frame of the table and this shaft has a wheel TI on its free endwhich is turned by hand. The forward portion of shaft 18 is journaled ina bracket 18 extending from one leg 34 diagonally to the forward siderail 33. The inner end of shaft 16 is journaled through the side wall ofeasing I3 in the bearing I8 and has a bevel gear 88 keyed to rotatetherewith inside the gear casing. This bevel gear 88 meshes with abeveled internally threaded gear 8| mounted on the threaded lower end I5of the rod II. Turning of gear 8| engaging threaded portion I5 causesrod II to move up or down and thereby impart motion to the carriagesleeve 66 and arm 10 which carries the hammer head.

Fixed to the upper end of standard 85 is an oblong metal plate D whichis disposed above the limit of movement of carriage sleeve 66 and thisplate is stationary during the operation of the machine. Plate D isformed with a rear sleeve 82 embracing the standard which is releasablylocked to the standard 85 by any suitable means such as a set screw 83.In the outer face of plate D is a vertical channel 84 which forms aguide for a sliding plate I08 and the movement of sliding plate I88 istranslated through the parts about to be described to the gaugeindicated generally at 88. Batten strips 85 are secured to the plate Din shoulders 86 on each side of channel 84 and overlap the sliding plateI88. At each side of the plate D and on each side of channel 84 at aboutthe center thereof are outset lateral lugs 88a and 86b and extendingtransversely across these lugs at right angles to channel 84 is ahorizontal channel 88c which construction forms a pocket or space 86cbetween the batten strips 85 and the faces of the lugs. At one sidechannel 88c registers with an aperture 81 in the rim 88 of the gaugehousing indicated generally at 89, the latter formed in the shape of adrum and rigidly secured to the lug 88d to Ill) ' sleeve 66.

project laterally. There is a sliding rack bar 90 in the transversechannel 86c having rack teeth 9I on the edge of the end thereof thatprojects into the gauge casing 89 through aperture 81.

The gauge housing 89 has a conventional glass panel 92 covering one faceand a rear wall 93. There is a stationary partition wall 94 bridging theinside of the casing on the obverse face of which is a dial calibratedin equally spaced radial division lines 95 about the margin. As willappear later each division line indicates the movement of hammer head ina selected part of an inch, while at another time each division linewill indicate an individual elevation or step in the contour of the map.A pointer shaft 96 is journaled respectively to the rear wall 93 andpartition wall 94 and carries pointer 91 on the outer end whichfunctions with the marginal division lines 95. On the shaft is anchoredone end of a coil spring 98 which embraces the shaft and is arranged toresist movement of the shaft in a clockwise direction and this springhas the other end secured to a pin in the rear wall 93 of the gaugecasing. There is a spur gear 99 on the pointer shaft 96 meshing with theteeth 9| on the rack bar 90 and linked as at I to the free end of therack bar is a bowed leaf spring IOI secured to the rim 88 of the housingby rivets I02 which applies tension to the rack bar normally urging itinwardly. Spring IOI maintains the moving parts in tight fitted relationand absorbs any play between the setting handle and the rack bar.

Bolted to rotate freely as at I03 to the inside center of rack bar 90and within the pocket 860 is a flat round knob I04 formed on a segmentof its inner face with a right angled cam I which conformably embracesthe lower portion of set-. ting lever I06. The setting lever slides incam I05 moving rack bar 90 distances in proportion to the angularposition of the setting lever I06. The lower portion of lever I06 pivotson a pin I01 and this pin is eccentrically mounted in a disk I I0 havinga stem III rotatable in an opening in sliding plate I08 as will be seenby referring to Figures 18 and 19. It will be seen that disk I I0 slideswith the sliding plate batten strips 85 and the setting lever I06 beingpivoted to the disk also slides with the slide plate I08. The upperportion of slide plate I08 projects above the guide channel 84 and theplate D and on the free end is secured a lateral arcuate arm H2 whichhas a sliding fit with a right angles recess I I3 on the inner face of aclamping plate H4 releasably secured in an inset shoulder H4 on the rearof the upper portion of setting lever I06. Clamping plate H4 serves tolock setting lever I06 at any selected angle on arm H2 by tightening thethumb screw I I5 carried by setting lever I06 and the inner end of thescrew threadedly engages the clamping plate H4 as at H6. The lowerportion of sliding plate I08 projects below the channel 84 and engagesthe free end of a vertical pin II'I secured to the carriage It followsthen, that slide plate I08 moves in response to the hammer head as willbe described later, and to keep slide plate I08 engaged with pin H'I acoil spring H8 is hooked at its upper end to a pin H9 on the slide andat its lower end hooked to a pin I on the carriage sleeve 66. To preventdirt getting into channels 86c there are cover plates I2I secured overthe channels and secured to the faces of the lugs with rack bar 90sliding under these cover plates. It will be noted that when settinglever I08 between the I06 is moved to the right or to the left theeccentric mounting thereof on pivot I01 will cause rack bar 90 to movein response to the movement of the lever. When setting lever I06 is madefast to the arm H2 the movement of slide plate I08 will also cause rackbar 90 to move as the cam I05 rides up and down on the setting lever.

On the upper end and laterally of the carriage sleeve 66 is secured bythe bracket I22 an indicator block I23 formed with a vertical channelI24 in the outer face. In the channel slides an indicating plunger I 25and the outer face of the plunger is flush with the outer face of theindicator block. To one side of the recess is a blade I 26 adjustablewith respect to the block on screws I21 extending through slots I28 inthe blade. There is an indicating line I29 on the blade, an indicatingline I30 on the plunger, and an indicating line I3I on the outer face ofthe block which all coincide under the conditions and for the purposeshereafter appearing. Plunger I25 moves with backing platform D becauseit is connected to the upper end of a bolt I32 and this bolt is rigidlysecured to the end of the rigid sectional link arm C.

On the outer end of arm 10 are a pair of spaced ears I33 between whichis mounted for horizontal swinging movement a sleeve I34 on the innerend of a short arm I35 and a pin I36 extends through the sleeve andterminates in the ears. On the outer end of arm I35 is a spindle I35which is journaled in a bearing I31 in an intermediate portion of thehammer head indicated generally at I38 which hammer head swings in avertical plane. So that the hammer head will always have a workingposition in the same horizontal position there is an abutment lug I39 onthe hammer head I38 which only bears on the arm I35 when the hammer headis in a horizontal plane. Lug I39 swings away from the arm I35 when itis desired to swing the hammer head on its pivot upwardly. Lug I39limits the downward movement of the hammer head.

Hammer head I38 is an elongated arm with a goose neck portion I4I on itsouter end that dips slightly below the plane of the arm. In the rear endof hammer head I38 is threaded as at I42 the inner end of a rod I43 onwhich slides the counter poise weight I44. The weight is formed with acentral bore I45 to receive the rod and has a set screw I46 to lock theweight in adjusted position on the rod. An electric motor I41 is securedto a rearwardly projecting shelf I48 which shelf is stepped slightlyabove the plane of the arm. Adjacent the shelf and the rear portion ofthe hammer head is an up standing bearing I48: On the goose neck issupported a floating bearing block I49. A short section of drive shaftI50 is journaled through bearing I48 while a short drive shaft sectionI5I is journaled through bearing block I49 and these short sections haveuniversal couplings I52, I53 with the center drive shaft section I54.Inner end of section I50 carries a gear I55 which meshes with a drivingpinion I56 on the motor shaft I51. Outer end of short section I5I has acrank I58 which has a connection by means of a pin I59 to the upper endof a pitman I60 that drives the hammer.

It is pointed out that bearing block I49 has a cylindrical dependingsleeve I6I which extends through a vertical bore I62 and this bore isformed in the vertically spaced ears I63, I64 on the goose neck MI. Thelower end of sleeve I6I has a threaded counter bore I65 to receive thethreaded upper end I 88 of a bored guide nipple I81 which is locked tothe sleeve by a nut I88. In the bore of sleeve I8I is a bearing bushingI89 the bore of which coincides with the bore in nipple I81 and anintermediate portion of the vertically reciprocating hammer rod I10extends through the registering bores. On the upper end of hammer rodI10 are a pair of spaced apertured ears "I connected by a wrist pin I12to the lower apertured end of pitman I80. 0n the outer face of bearingblock I49 is a hood I18 that swings on a pin I 14 and this pin iscarried by the bearing block I49. The hood covers crank I58, pitman I80and upper end of hammer rod I10 and is locked in position on the lateralflange of sleeve I8I by the latch hook I15. Threadably secured to thefree end of the hammer rod I10 is a chuck I16 in which is locked theshanks I11 carrying either a blunt rubber hammer block I18 as in Figureor a rubber hammer point I19 as in Figure 24.

At certain times the hammer will jump or vibrate due to improper tensionon the work sheet. Such vibration will spoil the contour being embossed.So as to offer a quick remedy for raising the hammer to overcome thevibration without raising the entire hammer head I 88 the bearing blockI49 and sleeve I8I are made in a floating construction. There isprovided a cain action by merely turning the handle indicated generallyat I80. Between the ears and encircling the center of depending sleeveI8I is a snug fitting collar I8I formed with a lateral lug I82 having ahorizontal bore I88 registering with a narrow annular groove I84 on thesurface of sleeve I6I. In the inner end of bore I88 is a crank I85having an eccentric pin I88 on which is mounted an arcuate lug I81 thatrides in the groove I84 and this crank is fixed to a spindle I88 keyedto rotate with handle I 80. The spindle I88 extends through a bushingI89 rigidly secured in the outer portion of bore I88. Thus when handleI80 is turned by the operator the crank will lower the sleeve I8I fromretracted position and that is why the universal couplings I52 and I58are necessary in the drive shaft.

Normally the sleeve I8I is retained in retracted relation by a pair ofcoil springs I90, I9I between the confronting faces of the bearing blockI49 and the goose neck I4I. One end of each spring conformably seats ina cavity I92 on the bearing block and the other end conformably seats ina cavity I98 on the goose neck I. The lower ends of a pair of pins I94are rigidly anchored in the goose neck I and rise therefrom. These pinshave threaded portions I95 extending through smooth apertures in aflange I98 on the inside lower edge of bearing block I49 and projectingthreaded portions I95 carry nuts I91 to adjust the tension on thesprings I9I and also limit the retraction of the bearing block. Whenhandle I80 is turned it moves the sleeve I8I against the tension ofsprings I9I and pins I84 keep the parts in proper alignment.

A work sheet I98 formed of ductile metal such as aluminum or copper ofsuitable gauge is carried by a rigid rectangular clamping frame E andthe work sheet bridges the guide frame 42 in which the backing platformB operates. The frame E may be adjusted to vary the tension on the worksheet I98 which is embossed by the rubber pulsating hammers I19 or I18.Where there are narrow spaces between contour boundaries the point isused, while where there are wide spaces between boundaries the flatblock may be used. The frame E consists of four fiat metal stripsrigidly connected together in rectangular configuration which stripsmake the end rails I99 and side rails 200 of the frame. The frame isremovably supported on lugs 20I extending around the guide frame 42.There are four inner gripping jaws 202 supported on the upper faces ofthe rails of the frame E and at spaced intervals each jaw is formed withupstanding bosses 208 having threaded horizontal bores 204 therein whichregister with smooth bores 205 on companion bosses 206 spaced along theouter margins of the rails of the frame E. Machine screws extend throughthe registering bores 204, 205 and by these screws tension on the worksheet I98 is regulated. The inner gripping jaws have fiat faces and inthe inner margins each are formed with a groove 208 coextensive withtheir lengths. At spaced points the inner gripping jaws have upstandingbolts 209 anchored therein and positioned outwardly of the grooves 208.There are four outer gripping jaws 2 I0 overlying the inner grippingjaws which are formed with marginal slots 2I I registering with theupstanding bolts 209 on the inner gripping jaws. These gripping jaws areflat strips and have tongues 2I2 on the inner faces thereof which clampthe margins of the work sheet I98 between said tongues and the grooves208 with which they register. Nuts 2 I8 on the bolts 209 hold the outergripping jaws in clamped relation to the inner gripping jaws with theworking sheet I98 therebetween. For holding tools there are a pair ofpans 222 which rest on the shoulders 48 of the tracks 89, 40 one to eachside of the frame 42.

Prior to placing work sheet I88 in the frame E it is provided on oneface with lines 2 to represent the boundaries of the elevations to beembossed on the map. With face bearing the boundary lines upward it isclamped in frame E and placed on guide frame 42. Platform B is thenelevated until the compressible mat 48 touches work sheet I98 in whichposition indicating lines I29, I80, I8I coincide. Referring to Figure 2by way of example there are nine boundary lines each representingelevations of one hundred feet. The completed contour map will then havenine different elevations embossed thereon with each elevation of onehundred feet being on a different plane in relief. The embossing is donein a downward direction in accordance with the method referred to in theaforesaid patent and will have an appearance when finished similar tothat shown in Figure 22 of the drawings.

For practical purposes the machine illustrated has been calibrated tothe scale divisions 95 representing one-tenth of an inch. With the edgeof setting lever I06 set to coincide with indicating line 2I5 on arm II2the machine is calibrated to make pointer 91 read zero at which positionhammer point is flush with the flat work sheet I98. Setting lever I08 isthen locked coinciding with line 2 I 5, and wheel 11 is turned untilpointer moves clockwise to coincide with the depth of the highestelevation. By way of example assume that the metal work sheet willwithstand embossing to a depth of five-tenths of an inch. Then wheel 11is stopped when pointer coincides with the fifth division on the scale.In this operation hammer point has been moved downwardly five-tenths ofan inch. There are to be nine elevations on the finished work sheet andit follows that five-tenths of an inch is to be divided into nine equalparts each part representing an elevation from sea level to the highestelevation of nine hundred feet.

Now the mechanism of the present invention will automatically divide thedepth 01' five-tenths of an inch into nine equal parts by changing theangle of setting lever I06 from zero line 2 I 5 to a point on arm II!where the pointer coincides with the ninth scale division on the dial.In moving the setting lever to the left this movement is translatedthrough knob I04 to rack bar 90 thereby moving the pointer by theeccentric action heretofore described. Setting lever I06 is then lockedto bar I I! by screws I I5 at the angle which corresponds to the ninthscale division on the dial. In the meantime hammer head I38 has notmoved from the first adjustment which was set at fivetenths of an inch.

The hammer head I38 is then turned upwardly until pointer returns to thezero mark on the dial. Then the hammer head is rim down until thepointer coincides with the first scale division. In doing this indicatorline I30 on plunger I25 will be above lines I29 and I3I the exactdistance the hammer head moves in moving pointer one scale division. Nowso as to have the compressible mat in the plane of depth of the firstembossing step to provide a backing all that is necessary is to turnwheel 51 until line I30 again coincides with lines I29, and I3I.

After the parts are set the work sheet is hammered by the pulsatinghammer point or block in the area bounded by the first elevation, thatis around the margin of the work sheet and out as far as the firstelevation boundary line representingone hundred feet of elevation. Afterthe first elevation is embossed then wheel 11 is turned until pointercoincides with the second scale division. After doing this platform B isthen lowered until line I30 coincides with lines I29 and I3I tocompensate for moving the-hammer head I38 one scale division on thedial.

The reason why shifting of the setting lever I06 automatically dividesthe total depth of the impressions into equal parts is because themachine calibrated to the zero line such as 2I5 on the bar II2 there isa positive angle of the lever engaging the cam I05 on the rack bar 90.As hammer head moves up and down this angle is unchanged and the teeth9I on rack bar and teeth on worm gear 99 will move the dial one divisionevery time the hammer head goes up or down one tenth of an inch. Ashammer head I38 moves up or down cam I05 rides on the setting lever I08which moves with slide plate I08, and as a result rack bar is movedhorizontally. When the angle of setting lever I06 is changed from thezero mark 2I5 for dividing the total depth, the movement of rack bar inproportion to the movement of the hammer head is changed and the changein the angle will cause rack bar 90 to move a greater distance in theset position than when the setting lever I06 was in the zero position.

It will be obvious that the hammer block or point will always be movedby handle I to the same level for embossing work. By turning crank I onthe handle, sleeve IGI is moved downwardly until the flange I96 and theother bottom parts of bearing block I49 abut the upper face of gooseneck I4I, at which point the handle I 80 and crank I85 cannot be turnedfurther. So that crank I85 cannot be turned past its lowest point, whichwould result in sleeve IIiI being retracted, the distance the crank maybe turned is regulated by moving the nuts I91 in or out on the threadedportion of the screws I94. While embossing the work sheet the operatoralways maintains the sleeve I6I in the projected position with theflange I96 abutting the goose neck III by holding the handle in theturned position by the strength of his hand.

Having thus described the invention, what is claimed as new is:

1. An embossing apparatus comprising, a stationary support, a pulsating.hammer, a hammer mounting structure connected with the hammer andcarried by the support, means mounted on the support for moving thehammer mounting structure with respect to the support, and a gaugeassociated with the hammer mounting structure for registering themovement of the hammer.

2. An embossing apparatus comprising,a stationary support, a pulsatinghammer, a hammer mounting structure connected with the hammer andcarried by the support, means mounted on the support for moving thehammer mounting structure with respect to the support, a gaugeassociated with the hammer mounting structure for registering themovement of the hammer, and a backing platform movably connected withthe support.

3. An embossing apparatus comprising, a stationary support, a pulsatinghammer, a hammer mounting structure connected with the hammer andcarried by the support, means mounted on the support for moving thehammer mounting structure with respect to the support, a gaugeassociated with the hammer mounting structure for registering themovement of the hammer, a backing platform movably connected with thesupport, and means carried by the support for moving the platform.

4. An embossing apparatus comprising, a stationary support, a pulsatinghammer, a hammer mounting structure connected with the hammer andcarried by the support, means mounted on the support for moving thehammer mounting structure with respect to the support, a gaugeassociated with the hammer mounting structure for registering themovement of the hammer, a backing platform movably connected with thesupport, means carried by the support for moving the platform, and anindicator carried by the hammer mounting structure and connected withthe backing platform to indicate the relation of the position of thebacking platform with respect to the hammer.

5. An embossing apparatus comprising, a stationary support, a pulsatinghammer, a hammer mounting structure connectedwith the hammer and carriedby the support, means mounted on the support for moving the hammermounting structure with respect to the support, a gauge associated withthe hammer mounting structure for registering the movement of thehammer, a backing platform movably connected with the support, meanscarried by the support for moving the platform, an indicator carried bythe hammer mounting structure and connected with the backing platform toindicate the relation of the position of the backing platform withrespect to the hammer, and a frame movably supported on the supportadapted to hold a work sheet being operated upon by the apparatus underthe hammer.

6. An embossing apparatus comprising, a staassociated with the hammermounting structure for registering the movement of the hammer, a backingplatform movably connected with the support, means carried by thesupport for moving the platform, an indicator carried by the hammermounting structure and connected with the backing platform to indicatethe relation of the position of the backing platform with respect to thehammer, a frame movably supported on the support adapted to hold a worksheet being operated upon by the apparatus under the hammer, clampingmeans carried by the frame whereby the margins of the work sheet areheld in clamped relation to the frame, and means carried by the frameand engaging said clamping means for adjusting the lateral tension onthe work sheet.

'7. An embossing apparatus, and in combination, a base, a standardcarried by the base, a pulsating hammer, a hammer mounting structureconnected with the hammer and movably supported by the standard, meanscarried by the base and engageable with the hammer mounting structurefor moving the hammer, and a gauge mounted on the standard andengageable with the hammer mounting structure for registering themovement of the hammer.

8. An embossing apparatus comprising a table, a standard rising from thetable, a. jointed carriage movably mounted on the standard, a powerdriven reciprocating hammer supported on the jointed carriage, meanscarried by the table and engageable with the carriage for moving thecarriage, and a gauge carried by the standard and engageable with thecarriage for registering the movement of the carriage.

9. An embossing apparatus comprising a table, a standard rising from thetable, a jointed carriage movably mounted on the standard, a powerdriven reciprocating hammer supported on thejointed carriage, meanscarried by the table and engageable with the carriage for moving thecarriage, a gauge'carried by the standard and engageable with thecarriage for registering the movement of the carriage, and a backingplatform movably supported by the table.

10. An embossing apparatus comprising a table, a standard rising fromthe table, a jointed carriage movably mounted on the standard, a powerdriven reciprocating hammer supported on the jointed carriage, meanscarried by the table and engageable with the carriage for moving thecar-. riage, a gauge carried by the standard and engageable with thecarriage for registering the movement of the carriage, a backingplatform movably supported by the table, and means carried by the tablefor moving the backing platform.

11'. An embossing apparatus comprising a table, a standard rising fromthe table, a jointed carriage movably mounted on the standard, a powerdriven reciprocating hammer supported on the jointed carriage, meanscarried by the table and engageable with the carriage for moving thecarriage, a gauge carried by the standard and engageable with thecarriage for registering the movement of the carriage, a backingplatform movably supported by the table, means carried by the table formoving the backing platform, and an indicator carried by the carriageand connected with the backing platform to indicate the relation of theposition of the backing platform with respect to the hammer.

12. An embossing apparatus comprising a table, a standard rising fromthe table, a jointed carriage movably mounted on the standard, a powerdriven reciprocating hammer supported on the jointed carriage, meanscarried by the table and engageable with the carriage for moving thecarriage, a gauge carried by the standard and engageable with thecarriage for registering the movement of the carriage, a backingplatform movably supported by the table, means carried by the table formoving the backing platform, an indicator carried by the carriage andconnected with the backing platform to indicate the relation of theposition of the backing platform with respect to the hammer, and a framesupported on the table above the backing platform adapted to hold a worksheet being operated upon by the apparatus under the hammer.

13. An embossing apparatus comprising a table, a standard rising fromthe table, a jointed carriage movably mounted on the standard, a powerdriven reciprocating hammer supported on the jointed carriage, meanscarried by the table and engageable with the carriage for moving thecarriage, a gauge carried by the standard and engageable with thecarriage for registering the movement of the carriage, a backingplatform movably supported by the table, means carried by the table formoving the backing platform,

on the table above the backing platform adapted r to hold a work sheetbeing operated upon by the apparatus under the hammer, clamping meanscarried by the frame for gripping the margins of the work sheet, andmeans carried by the frame and engaging the clamping means for adjustingthe lateral tension on the work sheet.

14. An embossing apparatus, and in combination, a stationary base, astandard carried by the base, a carriage movably mounted on thestandard, a reciprocating hammer, means for slidably supporting thehammer on the carriage, a power driven shaft journaled to the carriageand connected to the hammer, and means engageable with the firstmentioned means for bodily moving a portion of the drive shaft andjournal and the hammer.

15. An embossing apparatus, and in combination, a base, a standardrising from the base, a carriage slidable on the standard, a hammer headhaving a universal connection with the carriage, a hammer rod having aslidable bearing connection with the head, a drive shaft journaled tothe hammer head, and means coupled to the slidable bearing connectionfor moving the hammer rod and a portion of the drive shaft.

16. An embossing apparatus, and in combination, a base, a standardrising from the base, a carriage slidable on the standard, a hammer headhaving a swivel connection with the carriage, a power driven shafthaving more than one journal connection with said head, a hammer rod,means for mounting the rod for reciprocation on the head, said means andone of said journals joined to form a retractile unit, and means carriedby the first mentioned means to urge the retractile unit to projectedposition.

1'7. An embossing apparatus, and in combination, a support, a pulsatinghammer, a hammer mounting structure connected with the hammer andmovable on the support, a backing platform movable on the support, agauge on the support having variable engagement with the hammer mountingstructure to register the movement of the hammer, and an indicator onthe hammer mounting structure engageable with the backing platform toindicate the position of the hammer relative to the platform.

- 18. An embossing apparatus, and in combination, a suppport, apulsating hammer, a hammer mounting structure connected with the hammerand movable on the support, a backing platform movable on the support, agauge on the support having variable engagement with the hammer mountingstructure-to register the movement of the hammer mounting structure, anindicator on the support engageable with the backing platform toindicate the position of the hammer relative to the platform, and meansassociated with the gauge to change the relation of the engagement withthe hammer mounting structure.

19. An embossing apparatus, and in combination, a support, a pulsatinghammer, a hammer mounting structure connected with the hammer andmovable on the support, a backing platform movable on the support, agauge on the support having variable engagement with the hammer mountingstructure to register the movement of the hammer mounting structure, anindicator on the support engageable with the backing platform toindicate the position of the hammer relative to the platform, meansassociated with the gauge to change the relation of the engagement withthe hammer mounting structure, and a work sheet support frame carried bythe support and disposed between the backing platform and the plane ofthe hammer.

20. In combination with an embossing apparatus including a pulsatinghammer, a hammer mounting structure movable on a support of a gauge forregistering in a constant proportion the movement of the hammer relativeto the support, and means movable in response to the movement of thehammer mounting structure and coacting with the gauge to divide theconstant proportion into predetermined parts.

21. In combination with an embossing apparatus including a support, apulsating hammer 0 mounting structure movable on the support, a worksheet supporting member carried by the support, and a movable backingplatform connected with the support; of a gauge carried by the supportand co-acting with the hammer mounting structure to register themovement thereof with respect to the support, and an indicator carriedby the hammer mounting structure and connected 'withthe backing platformto register the movement of the backing platform with relation to thehammer mounting structure.

22. In combination with an embossing apparatus including a support, apulsating hammer mounting structure movable on the support, a work sheetsupporting member carried by the support, and a movable backing platformconnected with the support; of an indicator carried by the hammermounting structure and connected with the backing platform to registerthe movement of the backing platform with relation to the hammermounting structure.

JOHN J. BRAUND.

